Sealing machine



G. K. HENDERSON SEALING MACHINE Filed Feb. '2l 1926 A TTORNEY5.

, a. carton c forA mailingv purposes vand insure Patented Sept.v 13, 1927.

GEORGE K( HENDERSON; OFINDIfANAPOLVIS, INDIANA,

, lsnnmner MACHINE.

Application filed February 2,119.246l1 Serial No. 85,468.

This invention relates to a sealing machine.y f

The ,chiefl object.. of the invention is to provide a. machine whichis adaptedto kseal lthat. the seal is tightly secured.

The ychief feature of the invention consists in the passageLv of the cartonybetween twocompression members which exert just sufhcient'pressure to insure sealing and not enough. pressure. to collapse the carton to beY sealed -andgfwhich sealing machine maintainssaid;l pressure for a suiicient length of time toinsure setting off the. glue or adhesive and thus; prevent subsequent detach'- ment ofthe sealedparts by reasonV of defective sealing.

.Another and incidental. feature of the in- I vention,consists` in the arrangement of the sealingV machine so, that it may constitute,

.wherefdesired,- a conveyor for directional discharge@y Still afurther feature of, the machine consists invr its arrangement whereby the same is aulnmittically.y adjustable, to cartons of various dimensions, lsaid dimensions varying inone, or two, or-all three planes, said ma-l chine being adapted,Y toY simultaneously accmimodjate`V any variatioilgof cartons at any` one time as will more fullyappear. herein,- after. v

'llhef,ullv nature of the` invention will be understood from the accompanying drawings and the following description and claims:l

In the drawings Fig. v1 is a side elevational View, with parts broken away to foreshorten the figure, illustrating the invention in detail. Fig. 2 is an end elevational View of the same taken in the plane of 2-2 of Fig. 1 and in the direction of the arrows.

In the drawings indicates a supply platform, 11 a. receiving platform. Inter-y posed between said lplatform is a framework consisting of a plurality of transverse members 12fconnecting angle irons 13 and v:uprights 14 all in spaced relation. The central upright 15 `is a plate which includes suitable bearings hereinafter to be described.

' The side plates 16 are maintained in spaced relation by suitable means, and each of said side plates pivotally supports a plurality of supporting rollers 17 as at 18. These rollers are of uniform diameter and support the upper run 19 ofthe 'lower supporting belt. l

i j ustingrolls '22.'

of" the-tension roll Portionl connectedk to the side plate 16 includes aipivotal'fsupp'ort inthe form of a sh'aft'20rcarrying' a driving roller21. Im-

. mediatelyadj a'eent the driving roller j and at eachAv side thereof, are the idler tension ad'- These rolls vare carried by .shafts 23- rotatably supportedv in the bearingp'fbl'ocks 24".which are slidably supported in the inclined-"slots 25 of thel upright 15. A; bracket 26,k through the medium of an adjustingbolt 27, deterininesfthe position toY be appliedy tothe lower'belt havingthe upper runf19;V The' endless belt has sub'- lstantially' semi-circular Contact with .the

driving pulley or `roller 21 and'is maintained in 'su'chrel'ation by means of'the'tension adjusting" rollers side of'said 'driving roll. y f EachV ofthe side frame members 16` is extended*'upwardlyas at' 80 and' the same aresuitably maintained Ain' spaced relation by the `cross membersBl. An upright portion 32 pivotally.v supports at33'theshaft 34jcarryinga driving roller 35 substantially identical to; thefdri'vingjroller'21. .The upright 32 is providedwith apair'of oppositely. inclined slots 36' similarfto the slots 25.,

andx 'these slotsA slidably support, Vthe fbearing blocks 37` yeach of" whichj 'rotatably sup` and adjusts Vthe ytension positioned at each es n portarle Shaft aegOf-uie'iaief @medina-.-

ing pulley 39 associated 4withr the Vupper endless belt 40. 'The tension is Vadjusted through the medium of the bracketV 41 and the adjusting bolt 42.

The vside plates are herein shown provided with a. plurality of vertical slots 45 in each of which is slidably mounted a bearing block 46 pivotally supporting a shaft 47 upon which isY mounted the kroll 48. f A plurality of these rollers 48 are illustrated and these rollers are in rolling engagement with the lower run of the belt 40. As the carton 50 is fed into the receiving end of the machine, it is carried into engagement with You ot the lower or driving roll 21.

the carton passes through the machine it successively elevates the slidabljvY niounted rolls and thus pressure is applied to the carton :l'or sealing; purposes and thelength oit the machine and duration o'f pressurel appli cation is so determined b v the rate ot travel ot the belt that the carton is disengaged 'troni the upper belt and carried by the up per run ol" the lower belt 'trein the machine in a perfectly sealed condition.

`its shown clearly in Fig. l, the niachine is aiitoniaticallv1 adjustable to various sizes ot cartons and the niechine is capable ot sinnlltaneously handling diilerent sii/ie eartone. The cartons may vary in lengt-ln breadth andthiehness and the limitations imposed by the machine with respect to the dimensions ot' the cartons to be handled are the width or spacing ol' the side plates 3th the inininnun and inaxinnnn possible clearance between the rolls 1T and fl-t. Herein three cartons are illustrated which vary in width and in depth. lt is to be understood that in place et the vertical slottings, a yielding,` roller construction can be enijiloved, but the simplest torni ot the invention is one that is inost .lool proot and `which requires the least :uljustnient and the fewest nuniber of parts is the upper belt supiiorting mechanism shown herein as the preferred torni et the invent-.ion in its re strieted sense.

The ineens tor drivingl the aforesaid endless belt consists ot a inotor (t) driving a pinion (il, meshing` with a gear (32 that drives a worin and Worin wheel gear reduction indicated tgenerally` by the numeral G3, which drives a sprocketpinion Gil, in turn driving` a sprocket chain G5 which drives the sprocket gear G6 mounted upon shatt 2O l lso mounted upon the Opposite end of this shaft 20 a bevel gear 6'? meshing with gear 68 mounted on shaft G9 rotntablq,T supported in. the brackets 70. Shaitt (if) also carries a bevel geen' il meshing with another bevel rear tcarried by shaft supliiortlng roller Thus rollers ill und 35 are driven at theszune angular rate and in the Same direction and are herein shown ot` substantially the saine size, so that the belts 19 and Ll0 will have substantially the saine lineair speed. Thus as the carton passes through the machine the two belts have reltively little linear movement with respect to each other, and theretore, no abrasive act-.ion.`

'.lho invention claimed is:

l. ln a sealing machine, the combination ot a pair olf` endless belte, e pair ol' idler rolls Yfor each belt adjnstably mounted tor securing the desired tension therein, a driving; roll interposed between each pair ot idler rolls und engageableby the belt, and :i eoinuion drive tor said driving rolls.

2. t device ot the character as detned by claim l, characterized by the drivinpl rolls beingl of predetermined size with respect to each other and the connection therebetween end the eonnnon drive beingl ot such character that each belt has substantiallj)7 the saine linear belt speed.

3. ln a sealing machine, they combination ot an endless belt arranged lin substantially` triangular Ai'ornnrtion, the base thereof having engagement with the article to be sealed and the apex thereof including tension ad jus-tingand driving' means.

In witness whereo'if, I have hereunto inlined my signature.

GEORGE K, HENDERSON. 

